N-Grades are designations used on manufacturing drawings to specify particular material grades, typically in reference to metals like steel or alloys, which define the material's mechanical properties and performance characteristics. These grades often denote attributes like tensile strength, hardness, or resistance to wear or corrosion. For example, an N-Grade designation might specify a steel with a particular hardness level that is necessary for a part to perform effectively under stress or environmental conditions. Accurately specifying the N-Grade ensures the material selected for manufacturing will meet the functional requirements of the part, reducing failure risks, improving durability, and ensuring compatibility with other components in the final assembly.